Amino 2000 delivers a massive 2,000 mg of pure, naturally occurring free form amino acids per tablet to help build, protect and maintain lean muscle. To further support lean mass development, each dose of Amino 2000 delivers 8 grams of high quality whey protein concentrate - supporting a positive nitrogen balance. A positive nitrogen balance is necessary in order to promote protein synthesis and muscle growth. Amino acids are the building blocks of muscle for new growth and rebuilding muscle tissue after intense training.*